September 10th.
Inside the mechanism room of Mo City, the air was no longer filled with a single full Bright Moon, but with eight constantly shifting lunar phases.
Zhou Tieyi had decided to refine a complete lunar cycle system, which naturally required encompassing all eight phases of the moon. Consequently, he had stayed in Mo City for the entire month, condensing these eight phases to lay the groundwork for the construction of the system.
Chapter 372